<span>Words or names defined by the programmers are called as programmer defined symbols or identifiers. These are called as variables which are just simple storage locations and making available for the program to use. No two variables are same in the code of the program.</span>
Answer:
A
Explanation:
TCP numbers the packets before sending them so that the receiver can correctly reorder the packets, and it can request missing packets be resent.
UDP- sends all the packets at once
IP- rules on the networks
HTTP- used for transmitting web pages over the Internet
Answer:
CPU, memory and input/output.
Explanation:
The computer architecture is broken into these three components;
I. CPU: this is known as the central processing unit and it is considered to be the brain of a computer system. It is the system unit where all of the processing and logical control of a computer system takes place.
II. Memory: it is the location used by the computer system to hold or store data. A computer memory comprises of random access memory (RAM) and read only memory (ROM).
III. Input/output: this unit is also known as peripherals and it comprises of all of the input and output devices that are interconnected with the CPU. It includes keyboards, speakers, monitor, printer, scanner etc.
